Container for pasty substances



Jan. 27, 1953 J. GABLER CONTAINER FOR PASTY SUBSTANCES Filed Aug. 15, 1946 5 Sheets-Sheet l ATIOAD/VE/JS Jan. 27, 1953 J. GABLER CONTAINER FOR FAST! SUBSTANCES 5 Sheets-Sheet 2 Filed Aug. 15, 1946 9 H 0 fi 0 9 41% MFw 3 1 W? m WW MW W m 55 W7 Va A 1 1 6 Z 5% 1 V M :WJ a m 3 H w Jan. 27, 1953 J. GABLER 2,626,730

CONTAINER FOR PASTY SUBSTANCES Filed Aug. 15, 1946 5 Sheets-Sheet 5 A/VEA/EB JbsEF 65454512 Jan. 27, 1953 J. GABLER CONTAINER FOR PASTY SUBSTANCES 5 Sheets-Sheet 4 Filed Aug. 15, 1946 J u, E M n 0 W 4 Jan. 27, 1953 J. GABLER 2,626,730

CONTAINER FOR PASTY SUBSTANCES Filed Aug. 15, 1946 5 Sheets-Sheet 5 A IIIIIIIIIII R y w firf mvfw Patented Jan. 27, 1953 CONTAINER FOR PASTY SUBSTANCES Josef Gabler, Zurich, Switzerland Application August 15, 1946, Serial No. 690,779 In Switzerland February 15, 1944 Section 1, Public Law 690, August 8, 1946 Patent expires February 15, 1964 Claims.

The present invention relates to a container for pasty substances, the container being fitted with a piston for extruding the container contents and also with means for changing the position or" the piston in the container.

According to the invention the container is provided with an interchangeable inner container which serves to hold the pasty substances, and within which the piston, with unbroken surface on the side next the pasty substance, is detachably arranged, the means for displacing the piston being operative from the outer container and remaining at least partly attached to the outer container when the inner container is being changed.

Other and additional features and objects will be more fully disclosed in the following detailed description of this invention, when read in conjunction with the accompanying drawings, in which:

Fig. 1 shows a vertical section through a container according to a first form of arrangement,

Fig. 2 the lower end of the container shown in Fig. 1 with the parts in another position,

Fig. 3 a detail from Fig. l in side view,

Fig. 4 the piston for the container shown in Fig. 1, on a smaller scale,

Fig. 5 a second arrangement in vertical section with parts broken away,

Fig. 6 the lower part of the container shown in Fig. 5 with the parts in another position,

Fig. '7 a detail from Fig. 5 in side view,

Fig. 8 a seventh form. of arrangement in axial cross-section,

Fig. 9 the side view of a detail from Fig. 8,

Fig. 10 a cross-section on the line A-A of Fig. 11 of a further form of arrangement,

Fig. 11 a vertical section through the form of arrangement shown in Fig. 10,

Fig. 12 is a detail variant for Fig. 11.

Fig. 13 an axial section, partly in view, of a container in a further arrangement,

Fig. 14 the view of a box-like container, partly in section,

Fig. 15 detail variant of Fig. 14,

Fig. 16 vertical section through a further arrangement of a container,

Fig. 17 a piece of a container, partly in section, partly in view,

Fig. 18 a section through the lower part of a further form of arrangement of the container,

Figs. 19 and 20 axial cross-section through two examples and Fig. 21 a diagrammatic View of a art of Fig. .19 on reduced scale The container illustrated in Figs. li is in the form of a box with an outer jacket i, a hinged cover 2 and an inner mirror 3 in the latter. At the lower end of the container, the bottom 5 is rotatably arranged on the jacket I, by means of a ring nut l. A stirrup 6 is arranged so that it can swivel in a bearing I on the bottom 5. The jacket i has within it an interchangeable inner container 8, in which the pasty substance is contained. The inner wall of the container 8 is provided with a screw thread 9 in which a piston it screws, sealing tightly. The inner container 8 has an upper closing wall II with a depression I2 and an orifice I3 at the bottom of the depression I2. Two pins I4 on the container 8 fit into holes I5 of the jacket I and prevent the two parts I, 8 from turning with respect to each other. On the lower side of the piston IEI two grooves I6, running parallel to each other, are provided, into which fit pins H which are bent at an angle on the free ends of the arms of the U-shaped stirrup 6. A strut l8 keeps the arms of the stirrup at a certain distance apart. When the bottom 5 is turned with respect to the jacket I, and consequently also with respect to the container 8, the stirrup 6 serves as operating means for the piston ID, so that it is displaced axially by the screw thread 9. In this way the stirrup 6 changes from its initial position shown in Fig. 2 into the position shown in Fig. 1 and the pasty substance contained in the inner container 8 is extruded through the orifice I3 during this movement of the piston. After the inner container 8 has been completely emptied, the bottom 5 is unscrewed from the jacket I, the empty inner container 8 is removed and replaced by a new full container 8.

- The arrangement shown in Figs. 5 to 7 differs from that described above, besides in other features, by the stirrup 6 having a telescopic withdrawable part 6 in addition to the part 6'.

On the part 6", besides the strut I8, a cross bar I 9 is provided whose ends I! form pins which fit into the grooves I6 of the piston I0, This telescopic form of the stirrup makes it possible to use a higher jacket I and a higher inner container 8 than in the first arrangement. In addition to that, the rotatable bottom 5' is detachably held on the wall of the container I by means of an expanding ring 20. k The-variant illustrated in Figs. 8 and 8 is intended for-high containers and alonger piston stroke. The inner wall of the container 8 and alsothe periphery of the piston In have in this case no screw thread, but are smooth. The links of a toggle lever 36 in the form of a lazy-tongs are attached at one end to bearing 32 on the piston I while each of the other ends is pivotally connected to a moving nut 33. The nuts 33 run on left and right-hand threads 34 on a spindle with operating knob' 35 carried rotatably in the bottom of the container.

According to the arrangement shown in Figs. 10-12 a member consisting of two co-axial spiral springs 31, coiled in opposite directions to each other, in the sense that the springs are coiled respectively in clockwise and counterclockwise: direction, the coil expanding from each end adjacent the bottom piece 5, to each end terminating adjacent the piston. Each spring serves as an operating member for the piston I0 when the bottom piece is rotated. One end of each of these springs 31 is fixed in a recess in the bottom piece 5, whilst the other ends engage by means of pins 38 into holes on the bottom of the piston I0. The cover 2 is hinged to a ring 39, which is fitted with lugs 40 as shown in Fig. 11,. by means of which the ring 39 is detachably held in a groove 4| in the container I. According to the variant shown in Fig. 12 the ring 39 is connected by means of a thread 42 to the container I. The embodiments of the invention illustrated in. Figures -12 are also provided with pins I4 and holes I5 as in the embodiments. illustrated in Figures l-4, to prevent relative rotation of the inner and outer containers.

Instead of the spiral springs 31 a leaf spring folded like a bellows could be provided.

The container shown in Fig. 13 has a casing I with a cover I3I arranged rotatably and detachably on it in a manner not shown in the drawing. Within the container, a cylindrical jacket: I34, provided on the lower end with a set of teeth I33, is rotatably arranged, being turned by the cover I3I on which a pin I projects into a cut I36 in the cylinder jacket I34. At the lower end of the casing I30 a shaft I38 running. at right angles to the axis of the container, is rotatably supported in a ring I31, the shaft carrying a toothed Wheel I39 which engages with the setof teeth I33. On the shaft I33 is fitted a roller I40 on which is wound a pulling means MI.

The container I30 serves to hold a tube-like inner container I42, which contains the pasty substance to be extruded and is open at the back. In the container I42, a piston I43 can be displaced by means of a plate I44 in order to expel the substance, the free end of the pulling member I4I being attached to the lower side of the said plate. of the casing a compressed spring I45 is arranged. The lower end of this spring rests on a, plate I46, which in its turn is passed through by the shaft I38 and lies with an edge part I 40 on a roughenedpart I48 of the roller I41.

When the cover I3I is rotated, the cylinder jacket I34, and thereby the shaft I38 and the roller I40 are rotated by the toothed wheel I39. In this way the pulling member I M is rolled on to or off the roller according to the direction of rotation, and the spring I45 is compressed or released. Because of the contact between the edge part I41 and the roughened part I48 of the roller I40, the latter is secured against unintentional rotation.

In the form of arrangement shown in Fig. 14 the casing has the form of a small box with hinged cover I49 and inner mirror I50. For turning the shaft I38 with the toothed wheel I39 and the roller I40, the rotatable bottom I5I of Between this plate and the bottom the casing is here used, this being fitted with a set of teeth I52. The method of working of the device is similar to that described with reference to Fig. 13. In this form of arrangement and also in that shown in Fig. 13, the roller I40 can be provided with a self-locking wormwheel drive in order to prevent unintentional rotation. Then the toothed wheel I39 mounted on an intermediate shaft engages with the set of teeth on the bottom end of the jacket I34 or in the bottom of the casing I5I, whilst a worm arranged on this intermediate shaft is in engagement with a wormwheel 0n the shaft I38.

In the arrangement shown in Fig. 15 the easing bottom I5I is again rotatable on the casing wall I3 I. The casing bottom carries in the middle a bobbin in the form of a disc-shaped raised part I 53. The pulling member I M enters the middle of the bobbin and leaves it through a lateral passage. One end of the pulling member is again attached to a plate I44 (Figs. 13 and 14), whilst the other end is fixed in the bore I54 of the casing wall I3I. When the casing bottom I 5| is rotated, the pulling member here is wound on to or off the periphery of the disc-like raised piece I53. Rzollers could be provided at the spot in the disclike raised piece where the pulling, member turns at an angle, in order to reduce friction.

As shown in Fig. 16 the jacket I34 carries a rin I55 with an internal thread. Into this internal thread are screwed about one and a half turns of the coiled spring I45, arranged between the casing bottom and the plate I44. When the ring I55 is rotated in a suitable direction, coils of this spring are freed above the ring, so that they press on the plate I44 and a part of the contents of the container I42 are pressed out by the piston. Underneath the ring I55 the spring coils are pressed together, so that they cannot expand and have no effect on the spring pressure.

In Fig. 17, instead of the ring I55 (Fig. 16), a disc I56 is provided, with edge bent downwards and in contact with the wall of the cylindrical jacket I42, which is rotatable in the casing I30. The disc I56 has a central opening and to its edge a tubular-shaped part I51 is fixed, which serves as a guide for the spring, a part of a coil of the spring being held in this guide I51. When the disc I 56 is rotated, the spring is displaced within this tube-shaped guide I51, whereby coils of the spring subject to pressure under the disc, i. e. between the bottom of the casing and the disc, are made free. Above the disc the coils of the spring are free to expand and exert their pressure on the piston and the pasty substance introduced into the casing.

The arrangement shown in Fig. 18 serves for pressing out tubes with collapsible walls which can be pressed together. This arrangement has a plate I43 which, with an external thread, is in screw-thread engagement with an inner thread of the rotatable cylinder jacket I42. Between the plate I43 and the bottom of the casing the compressed spring I45 is arranged. An suitable means, for example, the pin I4 and hole I5 illustrated in Figure 1, or its equivalent, a lug I30 and groove I9I, illustrated in Figure 18, may be employed for causing the jacket I42 to rotate as a unit with the outer container. When the jacket I 42 is rotated, the plate I 43, which is prevented from rotating by the spring I45, screws upwards along the internal thread of the jacket I42 and exerts a pressure on the tube present in the casing I30 above the plate.

Instead of the tube-like guide I51 as shown .5 in Fig. 17, only an eccentric opening for the passage of the coiled spring could be provided in the disc I56.

If the container to be pressed out by means of the device is the usual commercial form of tube, the plate resting on the spring may be provided with a straight or arc-shaped slot into which the usual straight or arc-shaped, bent, fiatpressed end of the tube can be pushed.

Under certain circumstances, instead of using the screw thread to retard the motion of the plate in the casing, so that the action of the spring comes into effect only as desired, the friction between the rotatable cylinder jacket and the periphery of the plate may be so chosen that displacement under the influence of the spring pressure occurs only when turning of the cylinder jacket takes place.

Under certain circumstances it may be preferable to connect to the plate the bottom of the container which has to be pressed out. For this purpose special fixing members may be provided, or the plate may be fitted with a suction bowl to which the bottom of the container adheres. Also a permanent magnet could be fixed to the plate, and an armature working in connection with it could be fixed to the bottom of the container.

The container illustrated in Fig. 19 is in the form of a box with the outer jacket I carrying a detachable ring I58 bearing the hinged cover 2. The ring I58 is closed by a wall I59 with a central opening I68 and a hub I6I. On the hub I6I and between the wall I58 and another wall I62 formed in the ring I58, a ratchet wheel 55 is journalled. A push button 56 is secured to an arcuate piece I53 bearing a tooth I64 cooperating with the ratchet wheel 55 as may be seen in Figure 40. The piece I63 is secured to one end of a spirally wound spring I65 the other end of which is held on the ring I58. A hook I66 on the piece I63 engages a hook I61 on the hinged cover 2 and holds it in its closed position as long as the push button 56 is not depressed. On depression of the push button the cover 2 is released and on each further depression of the push button the ratchet wheel 55 is rotated by the cooperation of the tooth I64 with this wheel.

The jacket I encloses an interchangeable inner container 8 filled with the pasty substance. The inner wall of the container 8 is provided with a screw thread 9 in which a piston I screws. Two pins I4 on the container 8 engage two openings arranged in a plate I68 secured to the ratchet wheel 55.

A helical spring I69 arranged between the bottom of the jacket I and the piston I8 tends to lift the latter. A plate I10 located between the upper end of the spring I89 and a boss I1I of square section positioned on the underside of the piston engages a depression I12 in this plate I10 preventing rotation of the piston upon rotation of the container 8 by the press button and the ratchet wheel.

In the arrangement of Fig. the outer box I13 possesses a cover I14 with a central bore I15 through which passes the pasty substance contained in an interchangeable inner container I16.

In the cover I14 is forced elastically the upper end of a cylindrical wall I18 rotatably arranged in the box I13 and bearing the bottom I11 also rotatable in the box. Two brackets I18 of different height are secured to this bottom I11. A helical spring I80 lies between a rotatable disc I8I on the bottom I11 and a plate I82. Plate I82 and a piston I83 displaceable along the inner wall of the container I16 are connected by a threaded center piece I84 on the piston and a threaded recess I85 on plate I82.

By rotating the cover I14 the wall I18 and thereby the bottom I11 are also rotated. By the brackets I19 turns of the spring I88 which does not rotate are freed so that they press on the plate I82. This force is transmitted to the piston I83 which is set in movement and presses a part of the content of the container out through the bore I15.

The elasticity of the spring causes this movement to continue after the rotation of the cover I14 has ceased.

In this way the amount of pasty substance pressed through the bore I15 may be greater as desired. By rotating the cover I14 backwards the pression of the spring on the plate I82 is released and simultaneously the threaded piece I84 and the recess I65 are disconnected so that no pression remains on the piston I83 causing the pasty substance to flow out. The friction between the piston and the wall of the container is so chosen as to prevent rotation of the piston.

What I claim as new, and desire to secure by Letters Patent, is:

1. A dispensing container for pasty substances comprising a substantially cylindrical outer container having an upper portion and a bottom portion rotatably attached to the upper portion, an inner container within the outer container containing the substance to be dispensed and adapted to rotate integrally with the upper portion of the outer container, said inner container having screw threads on the imier surface of the walls thereof, a piston in the inner container having screw threads on the outer periphery thereof adapted to engage the threads on the inner container, a helical spring engaging at one end the bottom portion of the outer container and at the other end the piston whereby on relative rotation of the upper and bottom portions of the outer container the piston is moved longitudinally in the inner container.

2. A dispensing container for pasty substances comprising a substantially cylindrical outer container, a base closing one end of the outer container rotatably attached thereto, an inner container within the outer container containing the substance to be dispensed and adapted to rotate therewith, screw threads on the inner surface of the inner container, a piston within the inner container, the piston having screw threads on the outer periphery thereof adapted to engage the threads on the inner surface of the inner container, and a helical spring between the piston and the base, said spring engaging the piston at one end and the base at the other end, whereby rotation of the base relative to the outer container moves the piston longitudinally in the inner container.

3. A dispensing container for pasty substances comprising a substantially cylindrical outer container, a base closing one end of the outer container rotatably attached thereto, an inner container within the outer container containing the substance to be dispensed and adapted to rotate therewith, said inner container slidably engaging and supported by the outer container, screw threads on the inner surface of the inner container, a piston within the inner container, the piston having screw threads on the outer periphery thereof adapted to engage the threads on the inner surface of the inner container, and a helical spring between the piston and the base, said spring engaging the piston at one end and the base at the other end whereby rotation of the base relative to the outer container moves the piston longitudinally in the inner container.

4. A dispensing container for pasty substances comprising a substantially cylindrical outer container, a base closing one end of the outer container rotatably attached thereto, an inner container for the substance to be dispensed interchangeably secured within the outer container and adapted to rotate therewith, screw threads on the inner surface of inner container, a piston within the inner container, the piston having screw threads on the outer periphery thereof adapted. to engage the threads on the inner surface of the inner container, said piston having an irregular surface facing the base member, and a compressed helical spring between the piston and the base member, said spring adapted to enage the irregularities in the surface of the piston and the base member whereby relative rotation between the piston, spring and base member is prevented and rotation of the base relative to the outer container moves the piston longitudinally in the inner container.

5. A dispensing container for pasty substances comprising a substantially cylindrical outer container, a base closing one end of the outer container rotatably attached thereto, an inner container for the substance to be dispensed interchangeably secured Within the outer container and adapted to rotate therewith, screw threads on the inner surface of inner container, a piston within the inner container, the piston having screw threads on the outer periphery thereof adapted to engage the threads on the inner surface of the inner container, said piston having recesses in the surface facing the base member, and a compressed helical spring between the piston and the base member, said spring adapted to engage the recesses in the surface of the piston and the base member whereby relative rotation between the piston, spring and base member is prevented and rotation of the base relative to the outer container moves the piston longitudinally in the inner container.

JOSEF GABLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 451,392 Duc, Jr Apr. 28, 1891 1,021,451 Craven Mar. 26, 1912 1,319,264 Barnes et a1 Oct. 21, 1919 1,769,392 Ruiz July 1, 1930 2,499,771 OConnor Mar. 7, 1950 FOREIGN PATENTS I Number Country Date 394,453 Germany Apr. 22, 1924 449,786 Germany Sept. 21, 1927 330,783 Great Britain June 19, 1930 531,026 Germany Aug. 6, 1931 595,099 Germany Apr. 6, 1934 

